510 lines
12 KiB
C
510 lines
12 KiB
C
/*
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* Copyright (c) 2001 Joerg Wunsch
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <dev/ic/nec765.h>
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#include <sys/fdcio.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include "fdutil.h"
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/*
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* Decode the FDC status pointed to by `fdcsp', and print a textual
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* translation to stderr. If `terse' is false, the numerical FDC
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* register status is printed, too.
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*/
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void
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printstatus(struct fdc_status *fdcsp, int terse)
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{
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char msgbuf[100];
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if (!terse)
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fprintf(stderr,
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"\nFDC status ST0=%#x ST1=%#x ST2=%#x C=%u H=%u R=%u N=%u:\n",
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fdcsp->status[0] & 0xff,
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fdcsp->status[1] & 0xff,
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fdcsp->status[2] & 0xff,
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fdcsp->status[3] & 0xff,
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fdcsp->status[4] & 0xff,
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fdcsp->status[5] & 0xff,
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fdcsp->status[6] & 0xff);
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if ((fdcsp->status[0] & NE7_ST0_IC_RC) == 0) {
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sprintf(msgbuf, "timeout");
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} else if ((fdcsp->status[0] & NE7_ST0_IC_RC) != NE7_ST0_IC_AT) {
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sprintf(msgbuf, "unexcpted interrupt code %#x",
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fdcsp->status[0] & NE7_ST0_IC_RC);
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} else {
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strcpy(msgbuf, "unexpected error code in ST1/ST2");
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if (fdcsp->status[1] & NE7_ST1_EN)
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strcpy(msgbuf, "end of cylinder (wrong format)");
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else if (fdcsp->status[1] & NE7_ST1_DE) {
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if (fdcsp->status[2] & NE7_ST2_DD)
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strcpy(msgbuf, "CRC error in data field");
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else
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strcpy(msgbuf, "CRC error in ID field");
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} else if (fdcsp->status[1] & NE7_ST1_MA) {
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if (fdcsp->status[2] & NE7_ST2_MD)
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strcpy(msgbuf, "no address mark in data field");
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else
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strcpy(msgbuf, "no address mark in ID field");
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} else if (fdcsp->status[2] & NE7_ST2_WC)
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strcpy(msgbuf, "wrong cylinder (format mismatch)");
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else if (fdcsp->status[1] & NE7_ST1_ND)
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strcpy(msgbuf, "no data (sector not found)");
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}
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fputs(msgbuf, stderr);
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}
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static struct fd_type fd_types_auto[1] =
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{ { 0,0,0,0,0,0,0,0,0,0,0,FL_AUTO } };
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static struct fd_type fd_types_288m[] = {
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#ifndef PC98
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#if 0
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{ FDF_3_2880 },
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#endif
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{ FDF_3_1722 },
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{ FDF_3_1476 },
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{ FDF_3_1440 },
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{ FDF_3_1200 },
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{ FDF_3_820 },
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{ FDF_3_800 },
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{ FDF_3_720 },
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#endif /* !PC98 */
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{ 0,0,0,0,0,0,0,0,0,0,0,0 }
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};
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static struct fd_type fd_types_144m[] = {
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#ifdef PC98
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{ FDF_3_1440 },
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{ FDF_3_1200 },
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{ FDF_3_720 },
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{ FDF_3_360 },
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{ FDF_3_640 },
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{ FDF_3_1230 },
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{ 0,0,0,0,0,0,0,0,0,0,0,0 }
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#else
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{ FDF_3_1722 },
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{ FDF_3_1476 },
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{ FDF_3_1440 },
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{ FDF_3_1200 },
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{ FDF_3_820 },
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{ FDF_3_800 },
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{ FDF_3_720 },
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{ 0,0,0,0,0,0,0,0,0,0,0,0 }
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#endif
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};
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static struct fd_type fd_types_12m[] = {
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#ifdef PC98
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{ FDF_5_1200 },
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{ FDF_5_720 },
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{ FDF_5_360 },
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{ FDF_5_640 },
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{ FDF_5_1230 },
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{ 0,0,0,0,0,0,0,0,0,0,0,0 }
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#else
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{ FDF_5_1200 },
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{ FDF_5_1230 },
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{ FDF_5_1480 },
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{ FDF_5_1440 },
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{ FDF_5_820 },
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{ FDF_5_800 },
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{ FDF_5_720 },
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{ FDF_5_360 | FL_2STEP },
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{ FDF_5_640 },
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{ 0,0,0,0,0,0,0,0,0,0,0,0 }
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#endif
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};
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static struct fd_type fd_types_720k[] =
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{
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#ifndef PC98
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{ FDF_3_720 },
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#endif
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{ 0,0,0,0,0,0,0,0,0,0,0,0 }
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};
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static struct fd_type fd_types_360k[] =
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{
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#ifndef PC98
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{ FDF_5_360 },
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#endif
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{ 0,0,0,0,0,0,0,0,0,0,0,0 }
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};
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/*
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* Parse a format string, and fill in the parameter pointed to by `out'.
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*
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* sectrac,secsize,datalen,gap,ncyls,speed,heads,f_gap,f_inter,offs2,flags[...]
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*
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* sectrac = sectors per track
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* secsize = sector size in bytes
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* datalen = length of sector if secsize == 128
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* gap = gap length when reading
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* ncyls = number of cylinders
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* speed = transfer speed 250/300/500/1000 KB/s
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* heads = number of heads
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* f_gap = gap length when formatting
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* f_inter = sector interleave when formatting
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* offs2 = offset of sectors on side 2
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* flags = +/-mfm | +/-2step | +/-perpend
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* mfm - use MFM recording
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* 2step - use 2 steps between cylinders
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* perpend - user perpendicular (vertical) recording
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*
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* Any omitted value will be passed on from parameter `in'.
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*/
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void
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parse_fmt(const char *s, enum fd_drivetype type,
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struct fd_type in, struct fd_type *out)
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{
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int i, j;
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const char *cp;
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char *s1;
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*out = in;
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for (i = 0;; i++) {
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if (s == 0)
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break;
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if ((cp = strchr(s, ',')) == 0) {
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s1 = strdup(s);
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if (s1 == NULL)
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abort();
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s = 0;
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} else {
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s1 = malloc(cp - s + 1);
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if (s1 == NULL)
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abort();
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memcpy(s1, s, cp - s);
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s1[cp - s] = 0;
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s = cp + 1;
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}
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if (strlen(s1) == 0) {
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free(s1);
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continue;
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}
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switch (i) {
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case 0: /* sectrac */
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if (getnum(s1, &out->sectrac))
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errx(EX_USAGE,
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"bad numeric value for sectrac: %s", s1);
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break;
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case 1: /* secsize */
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if (getnum(s1, &j))
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errx(EX_USAGE,
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"bad numeric value for secsize: %s", s1);
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if (j == 128) out->secsize = 0;
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else if (j == 256) out->secsize = 1;
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else if (j == 512) out->secsize = 2;
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else if (j == 1024) out->secsize = 3;
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else
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errx(EX_USAGE, "bad sector size %d", j);
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break;
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case 2: /* datalen */
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if (getnum(s1, &j))
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errx(EX_USAGE,
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"bad numeric value for datalen: %s", s1);
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if (j >= 256)
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errx(EX_USAGE, "bad datalen %d", j);
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out->datalen = j;
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break;
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case 3: /* gap */
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if (getnum(s1, &out->gap))
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errx(EX_USAGE,
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"bad numeric value for gap: %s", s1);
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break;
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case 4: /* ncyls */
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if (getnum(s1, &j))
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errx(EX_USAGE,
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"bad numeric value for ncyls: %s", s1);
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if (j > 85)
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errx(EX_USAGE, "bad # of cylinders %d", j);
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out->tracks = j;
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break;
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case 5: /* speed */
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if (getnum(s1, &j))
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errx(EX_USAGE,
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"bad numeric value for speed: %s", s1);
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switch (type) {
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default:
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abort(); /* paranoia */
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case FDT_360K:
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case FDT_720K:
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if (j == 250)
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out->trans = FDC_250KBPS;
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else
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errx(EX_USAGE, "bad speed %d", j);
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break;
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case FDT_12M:
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if (j == 300)
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out->trans = FDC_300KBPS;
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else if (j == 250)
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out->trans = FDC_250KBPS;
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else if (j == 500)
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out->trans = FDC_500KBPS;
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else
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errx(EX_USAGE, "bad speed %d", j);
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break;
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case FDT_288M:
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if (j == 1000)
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out->trans = FDC_1MBPS;
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/* FALLTHROUGH */
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case FDT_144M:
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if (j == 250)
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out->trans = FDC_250KBPS;
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else if (j == 500)
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out->trans = FDC_500KBPS;
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else
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errx(EX_USAGE, "bad speed %d", j);
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break;
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}
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break;
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case 6: /* heads */
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if (getnum(s1, &j))
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errx(EX_USAGE,
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"bad numeric value for heads: %s", s1);
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if (j == 1 || j == 2)
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out->heads = j;
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else
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errx(EX_USAGE, "bad # of heads %d", j);
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break;
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case 7: /* f_gap */
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if (getnum(s1, &out->f_gap))
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errx(EX_USAGE,
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"bad numeric value for f_gap: %s", s1);
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break;
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case 8: /* f_inter */
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if (getnum(s1, &out->f_inter))
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errx(EX_USAGE,
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"bad numeric value for f_inter: %s", s1);
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break;
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case 9: /* offs2 */
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if (getnum(s1, &out->offset_side2))
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errx(EX_USAGE,
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"bad numeric value for offs2: %s", s1);
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break;
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default:
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if (strcmp(s1, "+mfm") == 0)
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out->flags |= FL_MFM;
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else if (strcmp(s1, "-mfm") == 0)
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out->flags &= ~FL_MFM;
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else if (strcmp(s1, "+auto") == 0)
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out->flags |= FL_AUTO;
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else if (strcmp(s1, "-auto") == 0)
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out->flags &= ~FL_AUTO;
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else if (strcmp(s1, "+2step") == 0)
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out->flags |= FL_2STEP;
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else if (strcmp(s1, "-2step") == 0)
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out->flags &= ~FL_2STEP;
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else if (strcmp(s1, "+perpnd") == 0)
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out->flags |= FL_PERPND;
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else if (strcmp(s1, "-perpnd") == 0)
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out->flags &= ~FL_PERPND;
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else
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errx(EX_USAGE, "bad flag: %s", s1);
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break;
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}
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free(s1);
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}
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out->size = out->tracks * out->heads * out->sectrac;
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}
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/*
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* Print a textual translation of the drive (density) type described
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* by `in' to stdout. The string uses the same form that is parseable
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* by parse_fmt().
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*/
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void
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print_fmt(struct fd_type in)
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{
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int secsize, speed;
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secsize = 128 << in.secsize;
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switch (in.trans) {
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case FDC_250KBPS: speed = 250; break;
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case FDC_300KBPS: speed = 300; break;
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case FDC_500KBPS: speed = 500; break;
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case FDC_1MBPS: speed = 1000; break;
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default: speed = 1; break;
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}
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printf("%d,%d,%#x,%#x,%d,%d,%d,%#x,%d,%d",
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in.sectrac, secsize, in.datalen, in.gap, in.tracks,
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speed, in.heads, in.f_gap, in.f_inter, in.offset_side2);
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if (in.flags & FL_MFM)
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printf(",+mfm");
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if (in.flags & FL_2STEP)
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printf(",+2step");
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if (in.flags & FL_PERPND)
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printf(",+perpnd");
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if (in.flags & FL_AUTO)
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printf(",+auto");
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putc('\n', stdout);
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}
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/*
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* Based on `size' (in kilobytes), walk through the table of known
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* densities for drive type `type' and see if we can find one. If
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* found, return it (as a pointer to static storage), otherwise return
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* NULL.
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*/
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struct fd_type *
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get_fmt(int size, enum fd_drivetype type)
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{
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int i, n;
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struct fd_type *fdtp;
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switch (type) {
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default:
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return (0);
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case FDT_360K:
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fdtp = fd_types_360k;
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n = sizeof fd_types_360k / sizeof(struct fd_type);
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break;
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case FDT_720K:
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fdtp = fd_types_720k;
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n = sizeof fd_types_720k / sizeof(struct fd_type);
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break;
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case FDT_12M:
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fdtp = fd_types_12m;
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n = sizeof fd_types_12m / sizeof(struct fd_type);
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break;
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case FDT_144M:
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fdtp = fd_types_144m;
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n = sizeof fd_types_144m / sizeof(struct fd_type);
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break;
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case FDT_288M:
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fdtp = fd_types_288m;
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n = sizeof fd_types_288m / sizeof(struct fd_type);
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break;
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}
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if (size == -1)
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return fd_types_auto;
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for (i = 0; i < n; i++, fdtp++) {
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fdtp->size = fdtp->sectrac * fdtp->heads * fdtp->tracks;
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if (((128 << fdtp->secsize) * fdtp->size / 1024) == size)
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return (fdtp);
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}
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return (0);
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}
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/*
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* Parse a number from `s'. If the string cannot be converted into a
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* number completely, return -1, otherwise 0. The result is returned
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* in `*res'.
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*/
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int
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getnum(const char *s, int *res)
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{
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unsigned long ul;
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char *cp;
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ul = strtoul(s, &cp, 0);
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if (*cp != '\0')
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return (-1);
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*res = (int)ul;
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return (0);
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}
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|
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/*
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* Return a short name and a verbose description for the drive
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* described by `t'.
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*/
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void
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getname(enum fd_drivetype t, const char **name, const char **descr)
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{
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switch (t) {
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default:
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*name = "unknown";
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*descr = "unknown drive type";
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break;
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case FDT_360K:
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*name = "360K";
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*descr = "5.25\" double-density";
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break;
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case FDT_12M:
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*name = "1.2M";
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*descr = "5.25\" high-density";
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break;
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case FDT_720K:
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*name = "720K";
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*descr = "3.5\" double-density";
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break;
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case FDT_144M:
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*name = "1.44M";
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*descr = "3.5\" high-density";
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break;
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case FDT_288M:
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*name = "2.88M";
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*descr = "3.5\" extra-density";
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break;
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}
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}
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